3979213 has 8 divisors (see below), whose sum is σ = 4622720. Its totient is φ = 3354480.

The previous prime is 3979211. The next prime is 3979219. The reversal of 3979213 is 3129793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3979213 - 2¹ = 3979211 is a prime.

It is a Duffinian number.

3979213 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3979211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4233 + ... + 5086.

It is an arithmetic number, because the mean of its divisors is an integer number (577840).

Almost surely, 2^3979213 is an apocalyptic number.

It is an amenable number.

3979213 is a deficient number, since it is larger than the sum of its proper divisors (643507).

3979213 is an equidigital number, since it uses as much as digits as its factorization.

3979213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9387.

The product of its digits is 10206, while the sum is 34.

The square root of 3979213 is about 1994.7964808471. The cubic root of 3979213 is about 158.4646499397.

The spelling of 3979213 in words is "three million, nine hundred seventy-nine thousand, two hundred thirteen".